I've been watching this space closely and have been on the lookout for new releases. Besides "Building Git", there is also "Building a Debugger"[0], "Writing a C compiler"[1], "Crafting Interpreters"[2], "The Raytracer Challenge"[3], and a few others that I can't vouch for as they appear to be low-quality compared to the ones I listed out.

The potential for technical authors in this space is enormous.

[0]: https://nostarch.com/building-a-debugger

[1]: https://nostarch.com/writing-c-compiler

[2]: https://craftinginterpreters.com/

[3]: http://raytracerchallenge.com/